2000
#9,114
National surname rank
Recorded bearers 3,295
First available Census row
Per 100,000 1.22
Rare Last name
Lamoureux
A French surname derived from the Old French word "amoureux," meaning "in love" or "amorous."
According to the 2020 US Census Bureau surname tables, roughly 3,822 Americans carry the last name Lamoureux. That puts it at #9,363 in the national surname ranking, appearing at a frequency of 1.12 per 100,000 people (about 1 in 89,679 residents).
This page is the full Name Census profile for the Lamoureux surname. You will find the Census Bureau frequency data, a multi-census history view, an ancestry and ethnicity breakdown based on self-reported demographics, the name's meaning and origin where available, and answers to the most common questions people ask about this surname.
Bearers in the US
3.8K
1 in 89,679
Census rank
#9,363
2020 decennial data
Per 100,000
1.1
Frequency rate
Recorded bearers
3.3K
rare in the US
Popularity narrative
The Census Bureau recorded 3,333 bearers of the surname Lamoureux in its 2020 decennial surname file. At a rate of 1.12 per 100,000 residents, it holds the 9363rd position in the national surname ranking.
Among Census respondents with the surname Lamoureux, the largest self-reported group is White at 93.1%. The next largest groups are Hispanic (3.2%) and Two or More Races (2.2%).
Origin
Meaning and origin of Lamoureux
The surname Lamoureux is of French origin, derived from the Old French word "amour" meaning love. It is thought to have originated as a descriptive nickname for someone with an amorous disposition or a person associated with courtly love traditions.
The earliest recorded instances of the name date back to the 12th century in regions of northern France. One of the earliest documented bearers of the name was Raoul Lamoureux, a knight mentioned in a charter from the year 1195 in the County of Champagne.
Variations of the spelling include Lamoureu, Lamouroux, and Lamoureau, reflecting the regional dialects and scribal variations common in medieval records. The name is also associated with certain place names derived from the surname, such as Lamoureux in the commune of Haute-Marne, and Lamoureuxville in Quebec, Canada.
Historically, the Lamoureux family held estates and lands in various parts of France, including Normandy, Brittany, and the Île-de-France region. During the 16th and 17th centuries, several members of the Lamoureux family were notable figures in French society, such as Jacques Lamoureux (1515-1590), a prominent lawyer and judge in Paris, and Marie Lamoureux (1628-1702), a noblewoman and philanthropist known for her charitable works.
Other notable individuals bearing the Lamoureux surname include Jean-Baptiste Lamoureux (1770-1825), a French military officer who served under Napoleon, and Léon Lamoureux (1835-1909), a French conductor and violinist who founded the Société des Concerts Lamoureux in Paris, an orchestra renowned for its performances of contemporary works.
In the 20th century, Marcel Lamoureux (1898-1972) was a French architect and designer who contributed to the Art Deco movement, while Armand Lamoureux (1924-2011) was a Canadian ice hockey player and coach, inducted into the Hockey Hall of Fame in 1980.
Demographics
Ancestry and ethnicity for Lamoureux
Among Census respondents with the surname Lamoureux, the largest self-reported group is White at 93.1%. The next largest groups are Hispanic (3.2%) and Two or More Races (2.2%).
The bar chart below shows how Lamoureux bearers described their own race and ethnicity on the 2020 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given surname, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown for every Census year so the breakdown stays comparable over time. When the source file also includes raw headcounts, Name Census shows those alongside the percentages in the legend.
Keep in mind that these are self-reported numbers. A person's surname does not determine their race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the Lamoureux surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.1% · 3,102
- Hispanic or Latino3.2% · 107
- Two or more races2.2% · 74
- Asian and Pacific Islander0.8% · 27
- American Indian and Alaska Native0.5% · 15
- Black or African American0.2% · 8
Timeline
Historical Census data for Lamoureux
Lamoureux appears in 3 published Census surname files: 2000, 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2010
#9,658
National surname rank
Recorded bearers 3,361
+66 bearers (+2.0%)
Per 100,000 1.14
Rank movement Down 544 places
2020
#9,363
National surname rank
Recorded bearers 3,333
-28 bearers (-0.8%)
Per 100,000 1.12
Rank movement Up 295 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #9,114 | 3,295 | 1.22 | First available Census row | First available Census row |
| 2010 | #9,658 | 3,361 | 1.14 | +66 bearers (+2.0%) | Down 544 places |
| 2020 | #9,363 | 3,333 | 1.12 | -28 bearers (-0.8%) | Up 295 places |
For 2020, the Census Bureau published race and Hispanic-origin columns as counts rather than percentages. Name Census converts those counts back into shares so the ancestry section stays comparable with the older surname files.
Year on year
2010 vs 2020 Census
How has the Lamoureux surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
20102020
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #9,658 | #9,363 | 3.1% |
| Count | 3,361 | 3,333 | -0.8% |
| Per 100K | 1.14 | 1.12 | -2.2% |
Between the 2010 and 2020 Census, the number of Lamoureux bearers went from 3,361 to 3,333 (-0.8% change). The surname moved up 295 positions in the national ranking, going from #9,658 to #9,363.
FAQ
Lamoureux surname: questions and answers
How many people in the U.S. have the surname Lamoureux?
Name Census estimates that about 3,822 living Americans carry the surname Lamoureux. Using the current population baseline, that works out to roughly 1 in 89,679 residents.
How common is Lamoureux?
Lamoureux ranks #9,363 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 1.12 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 3,333 people with the surname Lamoureux. That is different from the site's living-bearer estimate (3,822), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 1.12 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 1.12 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Lamoureux.
Has Lamoureux become more or less common over time?
Between 2010 and 2020, the surname Lamoureux went from 3,361 recorded bearers to 3,333. That is a decrease of 28 (-0.8%). In the national ranking it rose from #9,658 to #9,363.
What does the Census say about the background of Lamoureux?
Among Census respondents with the surname Lamoureux, the largest self-reported group is White at 93.1%. The next largest groups are Hispanic (3.2%) and Two or More Races (2.2%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Which group reports this surname most often?
White is the largest self-reported group for the surname Lamoureux in the 2020 Census, accounting for 93.1% (3,102 people in the source table).
What is the full ancestry breakdown?
Lamoureux appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.1%), Hispanic (3.2%), Two or More Races (2.2%). For 2020, the source file also published raw headcounts for each group, which is why this page can show both percentages and counts in the ancestry section.
Is this page using the latest Census data?
Yes. This page is using the latest surname file currently loaded on Name Census, which is 2020. The historical section above also keeps any older Census surname entries we have for Lamoureux (2000, 2010, 2020).
Does the Census include every surname?
No. The Census Bureau only publishes surnames that appeared at least 100 times in a given decennial Census. That means very rare surnames are excluded entirely, and a surname can appear in one Census release but disappear from a later one if it falls below the reporting threshold.
Why don't the ancestry percentages always add up to exactly 100%?
There are two main reasons: rounding and suppression. The Census Bureau rounds published values, and it may suppress very small cells to protect privacy. For 2020, the Bureau also published raw group counts rather than direct percentages, so Name Census converts those counts back into shares for comparability across census years.
What does Lamoureux mean?
A French surname derived from the Old French word "amoureux," meaning "in love" or "amorous." The fuller origin note on this page goes into more detail.
Where does the surname data come from?
All surname statistics on Name Census are drawn from the US Census Bureau's decennial surname frequency tables. These files list every surname that appeared 100 or more times in the 2020 Census, along with a count, a per-100,000 rate, and a self-reported demographic breakdown. You can read the full explanation on our methodology page.
How does Name Census estimate living bearers?
For surnames, Name Census does not age cohorts the way it does for first names. Instead, it takes the Census Bureau's published frequency for Lamoureux (1.12 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
How many people have the surname Lamoureux?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.